C can be taken out of the question as eukaryotic cells do not have a nucleus. A lysosome is is only in prokaryotic cells so B can be taken out of the question. The answer should be D.
The spinal cord and the brain make up the central nervous system, and spinal cord nerves carry most messages between the brain and the rest of the body.
The vagus nerve carries the signal from the brain to the heart.
Scientists use biotechnology to create all of the following except waste products. The correct answer is D.
Answer:Rarely use plastic
Explanation:
<em>Chemical weathering is most effective in;</em>
C) A warm, moist climate
<u>Chemical processes need water, and occur more rapidly at higher temperature, so warm, damp climates are best.</u>